Stay in Temecula or on the Bear Creek side of Murrieta if you can. I’d avoid Winchester because the lack of HOA controls, coupled with the huge houses, is turning that area into a foreclosure and multi-family rental slum. I’d also avoid Beaumont for the same reasons. When you purchase consider the number of apartments in the zip code; that should correlate to the schools’ rankings. Prices are coming down in Temecula. I’ve noticed a few very small and older single family homes in less desirable neighborhoods in both 92591 and 92592 listed in the high 200’s so give it a year or so to drop to the low 200’s or even within the next 2 years to drop to the high 100’s.
Unlike some of the posters here, I do not see a reversion of spacious single-family homes in good areas to prices in the $100,000 range, but I think you will be able to pick up a good sized single family home in a good zip code in the mid $200,000 range, although I believe this would be in an older community.